Are polar faculae generated by a local dynamo?

Sivaraman, K. R; Antia, H. M; Chitre, S. M

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dc.contributor.author	Sivaraman, K. R
dc.contributor.author	Antia, H. M
dc.contributor.author	Chitre, S. M
dc.date.accessioned	2010-07-14T16:35:33Z
dc.date.available	2010-07-14T16:35:33Z
dc.date.issued	2010
dc.identifier.citation	Hasan, S. S and Rutten, R. T., eds., Magnetic coupling between the interior and atmosphere of the Sun, Proceedings of the conference "Centenary commemoration of the discovery of the Evershed effect" Dec, 2 - 5, 2008, Indian Institute of Astrophysics, Bangalore, India, pp. 386 – 389	en
dc.identifier.isbn	978-3-642-02858-8
dc.identifier.uri	http://hdl.handle.net/2248/5185
dc.description	Restricted Access
dc.description	The original publication is available at springerlink.com
dc.description.abstract	Polar faculae (PF) are bright, small-scale structures measuring a few seconds of arc, populating the polar zones at latitudes >50°. They possess magnetic fields ranging from 150 to 1,700 Gauss and largely constitute the polar magnetic fields. Where and how their fields are generated in the solar interior remain open questions. Using measurements of PF rotation rates, we show that their anchor depths probably lie in subsurface layers at radius r/R ȯ = 0:94-1.00. If so, the PF fields are possibly generated by a local dynamo in a subsurface shear layer extending to r/R ȯ > 0:94.	en
dc.language.iso	en	en
dc.publisher	Springer	en
dc.relation.ispartofseries	Astrophysics and Space Science Proceedings;
dc.relation.uri	http://www.springerlink.com/content/lr1484116xh6565g/	en
dc.rights	© Springer	en
dc.title	Are polar faculae generated by a local dynamo?	en
dc.type	Article	en